EP 2211412 A1 20100728 - Cell voltage detecting system and drive voltage maintaining method
Title (en)
Cell voltage detecting system and drive voltage maintaining method
Title (de)
Erkennungssystem für die Zellspannung und Verfahren zur Aufrechterhaltung der Antriebsspannung
Title (fr)
Système de détection de la tension des cellules et procédé de maintien de la tension d'entraînement
Publication
Application
Priority
JP 2009013169 A 20090123
Abstract (en)
In a cell voltage detecting system detecting cell voltages of a fuel cell connected in series, a voltage detector detects cell voltages. An auxiliary power supply generates a voltage equal to or greater than a minimum voltage for driving the voltage detector at positive and negative terminals thereof. First and second diodes are connected to a positive drive terminal of the voltage detector to supply the power to the drive terminal of the voltage detector from a high voltage side between the fuel cell or the auxiliary power supply. A negative terminal of the fuel cell, the negative drive terminal, and the negative terminal of the auxiliary power supply are connected to have a same potential. A method of maintaining a drive voltage for the voltage detector is also disclosed in which the drive voltage for the voltage detector is supplied from the high voltage side.
IPC 8 full level
H01M 8/04 (2006.01); G01R 31/36 (2006.01)
CPC (source: EP US)
G01R 31/3835 (2019.01 - EP US); H01M 8/04552 (2013.01 - EP US); H01M 8/04559 (2013.01 - EP US); G01R 31/396 (2019.01 - EP US); Y02E 60/50 (2013.01 - EP)
Citation (applicant)
JP 2000356656 A 20001226 - SANYO ELECTRIC CO
Citation (search report)
- [I] JP 2000356656 A 20001226 - SANYO ELECTRIC CO
- [I] US 2005068002 A1 20050331 - OZEKI AKIHIRO [JP]
- [I] US 2005007068 A1 20050113 - JOHNSON TODD W [US], et al
- [A] JP 2007066643 A 20070315 - NISSAN MOTOR
- [A] JP H07335273 A 19951222 - FURUKAWA BATTERY CO LTD
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2211412 A1 20100728; EP 2211412 B1 20120118; AT E542256 T1 20120215; JP 2010170893 A 20100805; JP 4960977 B2 20120627; US 2010188093 A1 20100729; US 8274292 B2 20120925
DOCDB simple family (application)
EP 10151382 A 20100122; AT 10151382 T 20100122; JP 2009013169 A 20090123; US 69216710 A 20100122